Ink cartridge



FIG. 1 is a top, front and right side perspective view of an inkcartridge according to the present design;

FIG. 2 is a bottom, front and left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a left side elevational view thereof.

The ornamental design for an ink cartridge, as shown and described.